There are a surprising amount of options out there when it comes to the best fish for 5 gallon tanks. Even though aquariums of this size are too small for many species, there are still plenty that can thrive! This list will show you the best options available, and provide some helpful information about each.
How many inches wide is a 5 gallon tank?
Here are the dimensions and gallon sizes of all fish tanks:
| Tank Size |
Dimensions in Inches L x W x H |
Aquarium Shape |
| 5 Gallon |
16 x 8 x 10 |
Standard Rectangular |
| 5.5 Gallon |
16.25 x 8.375 x 10.5 |
Standard Rectangular |
| 10 Gallon Leader |
20.25 x 10.5 x 12.6 |
Standard Rectangular |
| 10 Gallon Long |
24.25 x 8.5 x 12.6 |
Standard Rectangular |
How many fish can I put in a 5 gallon?
You can keep about 2-4 fish in a tank this size as long as each fish is not larger than 1 inch. The one-inch fish per gallon rule would apply to most smaller fish breeds like Tetras, Betta, Rasbora, Shrimps, and more. Fish that can grow larger than 1 inch are not recommended for a 5-gallon tank.
How big is a 5 gallon tank in CM?
Aquarium Dimensions: Sizes Under 100 Gallons
| Aquarium Size |
Inches |
Centimetres |
| 5.5 Gallon Tank Dimensions |
16 x 8 x 10 |
40.6 x 20.3 x 25.4 |
| 10 Gallon Tank Dimensions |
20 x 8 x 12 |
50.8 x 20.3 x 30.5 |
| 15 Gallon Tank Dimensions |
24 x 12 x 12 |
61 x 30.5 x 30.5 |
| 15 Gallon Tank Dimensions |
20 x 10 x 18 |
50.8 x 25.4 x 45.7 |
Is a 5 gallon tank big enough for a fish? – Related Questions
What can you fit in a 5 gallon fish tank?
This guide will help you understand which fish and other critters are suitable, and the best fish for your 5 gallon tank.
- Chili Rasboras (Boraras brigittae)
- Endler’s Livebearer (Poecilia wingei)
- Fancy Guppy (Poecilia reticulata)
- Betta (Betta splendens)
- Killifish.
- Dwarf Pea Puffer (Carinotetraodon travancoricus)
How heavy is a 5 gallon fish tank full?
How long is a 5 gallon air tank?
2 In Stock as of November 16, 2022 2:25 PM EST. Firestone 9248 5 gallon air tank is 7 inches in diameter and 34 inches in length and has six 1/2 NPT ports and one 1/4 NPT port.
How big of a tank does an axolotl need?
Housing. To house a single axolotl, they will require a minimum tank size of 60cm in length (standard 2ft tank), and a further 30cm for every axolotl you add to your tank i.e. 90cm for 2 axolotls.
How many gallons is a 36x18x18 tank?
50 Gallon Custom Aquarium, 36x18x18.
What is a 10 gallon tank in CM?
Standard Tank Sizes
| US gallons |
Litres |
Centimeters LxDxH |
| 10 (leader) |
37.9 |
50.8 x 27.9 x 33.0 |
| 10 (long) |
37.9 |
61.0 x 22.9 x 33.0 |
| 15 |
56.8 |
61.0 x 33.0 x 33.0 |
| 15 (high) |
56.8 |
50.8 x 27.9 x 48.3 |
Is a 10 gallon tank small?
There are many 10 gallon aquarium kits on the market these days. A 10 gallon aquarium kit is easy to setup. But the small size, low water volume and limited surface area of a 10 gallon aquarium make it challenging for beginners to maintain stability over time.
Can I have 10 fish in a 10 gallon tank?
Going by the numbers, however, you can put up to 8 to 10 fish in a 10-gallon aquarium tank. However, we would not recommend adding 10 fish in a tank unless the fish are tiny and do not generate too much waste. On the other hand, if you have chosen fish types that grow over time, you should limit the number to 8 or 6.
How often do you clean 10 gallon fish tank?
Weekly. How often should you clean a small aquarium? If you’ve got a 5 or 10-gallon tank then the answer is definitely at least once a week. Remember, the water inside your aquarium is the equivalent of air to your fish.
Do you remove fish when cleaning tank?
It’s best to keep your fish in the fish tank when you clean. Removing them causes unnecessary stress for your fish, and you run the risk of accidentally hurting them. It is possible to keep your fish in the tank while you clean because you don’t need to remove all the water to clean the tank properly.
What is the easiest fish to take care of?
In particular, guppies, zebrafish, goldfish, mollies, neon tetras, betta fish, and suckerfish are just some of the easiest fish to take care of in a community aquarium. Make sure to create a tank with plenty of rocks, caves, small toys, and plants to provide enrichment for the fish.
Do I need to remove fish for water change?
There is no need to remove the fish from the aquarium when making a partial water change, as this would cause more stress for the fish. If your fish’s fins become droopy or flat, this is an indication that the water quality may not be safe, in which case an immediate water change is required.
Can I change my fish water everyday?
If you dechlorinate properly and always bring water to the same temperature, there is actually no limit on how often you can change the water. Professional fish breeders may change water daily in order to remove excess food and encourage maximum growth.
Can I change 100% of my aquarium water?
Completely replacing the water in the fish tank is a bad idea because it will remove beneficial bacteria that live in the tank and reset the nitrogen cycle, which could kill your fish. If you regularly clean your tank, doing a partial water change is the best option. Keep your fish’s water clean, but not sterile.
Can I change aquarium water with tap water?
Ordinary tap water is fine for filling up the aquarium as long as you let it sit for several days before adding fish (the chlorine in the tap water will kill the fish). You may also purchase dechlorination solutions at our store.
Do you put cold or warm water in a fish tank?
The preferred range is 65-85°F (18-29°C). At 95°F (35°C), bacteria die, which can lead to ammonia spikes. Lower temperatures cause the bacteria to become less active and can even make your aquarium take longer to cycle.